Impact of variable look‐back periods on the incidence rates of chronic diseases using real world data

Purpose Estimating disease incidence based on secondary data requires a look‐back period to exclude patients with pre‐existing disease from the incidence risk set. However, the optimal length of the look‐back period and its impact on incidence rates are often unknown. We studied the impact of the le...

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Veröffentlicht in:Pharmacoepidemiology and drug safety 2020-09, Vol.29 (9), p.1086-1092
Hauptverfasser: Rosenlund, Mats, Ekström, Nils, Törnblom, Michael, Wintzell, Viktor, Stark, James H., Titievsky, Lina
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Sprache:eng
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